<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="班级" prop="className">
        <el-select v-model="queryParams.className" placeholder="请选择班级" @change="classesChange" style="width: 100%">
          <el-option
            v-for="item in classes"
            :key="item.value"
            :label="item.label"
            :value="item.value"
          >
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="问题类型" prop="questionType">
        <el-select v-model="queryParams.questionType" placeholder="请选择问题类型" style="width: 100%">
          <el-option
            v-for="dict in dict.type.sys_question_type"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value">
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="跟踪人" prop="teacherName">
        <el-select v-model="queryParams.teacherName" placeholder="请选择跟踪人" @change="classesChange" style="width: 100%">
          <el-option
            v-for="item in teachers"
            :key="item.value"
            :label="item.label"
            :value="item.value"
          >
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="学生" prop="studentName">
        <el-input
          v-model="queryParams.studentName"
          placeholder="请输入学生"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['teaching:trace:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['teaching:trace:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['teaching:trace:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['teaching:trace:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="traceList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="班级" align="center" prop="className" />
      <el-table-column label="学生" align="center" prop="studentName" />
      <el-table-column label="问题类型" align="center" prop="questionType" >
        <template slot-scope="scope">
          <dict-tag :options="dict.type.sys_question_type" :value="scope.row.questionType"/>
        </template>
      </el-table-column>
      <el-table-column label="扣分" align="center" prop="deductPoints" />
      <el-table-column label="发生时间" align="center" prop="happenTime" width="180"/>
      <el-table-column label="跟踪次数" align="center" prop="traceTimes" />
      <el-table-column label="跟踪老师" align="center" prop="teacherName" />
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['teaching:trace:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['teaching:trace:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改教学跟踪对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="班级" prop="className">
          <el-select v-model="form.classId" placeholder="请选择班级" @change="classesChange" style="width: 100%">
            <el-option
              v-for="item in classes"
              :key="item.value"
              :label="item.label"
              :value="item.value"
              >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="学生" prop="studentName">
          <el-select v-model="form.studentId" placeholder="请选择学生" @change="studentsChange" style="width: 100%">
            <el-option
              v-for="item in students"
              :key="item.value"
              :label="item.label"
              :value="item.value">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="问题类型" prop="questionType">
          <el-select v-model="form.questionType" placeholder="请选择问题类型" style="width: 100%">
            <el-option
              v-for="dict in dict.type.sys_question_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="发生时间" prop="happenTime">
          <el-date-picker clearable
                          v-model="form.happenTime"
                          type="datetime"
                          value-format="yyyy-MM-dd HH:mm:ss"
                          placeholder="请选择发生时间" style="width: 100%">
          </el-date-picker>
        </el-form-item>
        <el-form-item label="扣除分数" prop="deductPoints">
          <el-input v-model="form.deductPoints" placeholder="请输入扣分" />
        </el-form-item>
        <el-form-item label="问题描述" prop="remark">
          <el-input v-model="form.remark" placeholder="请输入备注" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {addTrace, delTrace, getTrace, listTrace, updateTrace} from "@/api/teaching/trace";
import {listClass} from "../../../api/student/class";
import {listStudentByClassId} from "../../../api/student/student";
import {listTeacher} from "../../../api/teacher/teacher";

export default {
  dicts: ['sys_question_type'],
  name: "Trace",
  data() {
    return {
      classes: [],
      students: [],
      teachers: [],
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 教学跟踪表格数据
      traceList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        className: null,
        studentName: null,
        questionType: null,
        deductPoints: null,
        traceTimes: null,
        teacherName: null,
        remark: null,
        deleted: null,
        updateTime: null,
        classId: null,
        studentId: null,
        teacherId: null,
        happenTime: null
      },
      // 查询班级参数
      queryClassesParams: {
        pageNum: 1,
        pageSize: 10,
        className: null,
        campus: null,
        status: null,
        charge: null,
        employmentTeacher: null,
        assistantTeacher: null,
      },
      // 查询学生参数
      queryStudentParams: {
        pageNum: 1,
        pageSize: 10,
        studentName: null,
        classes: null,
        campus: null,
        status: null,
        phone: null,
      },
      // 查询老师参数
      queryTeacherParams: {
        pageNum: 1,
        pageSize: 10,
        id: null,
        name: null,
        subject: null,
        campus: null,
        phone: null,
        priority: null,
        teacherType: null,
        gender: null,
        userId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    classesChange(newSelectedValue){
      let _this = this;
      let selectedOption = this.classes.find(option => option.value === newSelectedValue);
      _this.form.className = selectedOption ? selectedOption.label : '';
      listStudentByClassId(newSelectedValue).then(response => {
        _this.students = response.rows.map(item => ({ label: item.studentName, value: item.id }));
      });

    },
    studentsChange(newSelectedValue){
      let _this = this;
      let selectedOption = this.students.find(option => option.value === newSelectedValue);
      _this.form.studentName = selectedOption ? selectedOption.label : '';
    },
    /** 查询教学跟踪列表 */
    getList() {
      this.loading = true;
      let _this = this;
      listClass(this.queryClassesParams).then(response => {
        _this.classes = response.rows.map(item => ({ label: item.className, value: item.id }));
      });
      listTrace(this.queryParams).then(response => {
        this.traceList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
      listTeacher(this.queryTeacherParams).then(response => {
        this.teachers = response.rows.map(item => ({ label: item.name, value: item.id }))
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        className: null,
        studentName: null,
        questionType: null,
        deductPoints: null,
        createTime: null,
        traceTimes: null,
        teacherName: null,
        remark: null,
        deleted: null,
        updateTime: null,
        classId: null,
        studentId: null,
        teacherId: null,
        happenTime: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加教学跟踪";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getTrace(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改教学跟踪";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateTrace(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addTrace(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除教学跟踪编号为"' + ids + '"的数据项？').then(function() {
        return delTrace(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('teaching/trace/export', {
        ...this.queryParams
      }, `trace_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
